EP 2198108 B1 20120627 - HYDRODYNAMIC BEARING ASSEMBLIES, AND HYDRODYNAMIC BEARING APPARATUSES AND MOTOR ASSEMBLIES USING SAME
Title (en)
HYDRODYNAMIC BEARING ASSEMBLIES, AND HYDRODYNAMIC BEARING APPARATUSES AND MOTOR ASSEMBLIES USING SAME
Title (de)
HYDRODYNAMISCHE LAGERBAUGRUPPEN, HYDRODYNAMISCHE LAGERVORRICHTUNGEN UND MOTORBAUGRUPPEN DAMIT
Title (fr)
ENSEMBLES PALIERS HYDRODYNAMIQUES ET APPAREILS À PALIER HYDRODYNAMIQUE ET ENSEMBLES MOTEURS UTILISANT CEUX-CI
Publication
Application
Priority
- US 2008077241 W 20080922
- US 97474707 A 20071015
Abstract (en)
[origin: US2009097788A1] Hydrodynamic bearing assemblies and apparatuses are disclosed. Such hydrodynamic bearing assemblies may be employed in bearing apparatuses for use in downhole motors of a subterranean drilling system or other mechanical systems. In one embodiment of the present invention, a hydrodynamic bearing assembly includes a plurality of bearing segments distributed circumferentially about an axis. Each bearing segment includes a superhard bearing surface. The plurality of bearing segments define a plurality of seams. Each seam is formed between circumferentially-adjacent bearing segments of the plurality of bearing segments. Further embodiments of the present invention include hydrodynamic bearing apparatuses and downhole motors that may utilize any of the disclosed hydrodynamic bearing assemblies.
IPC 8 full level
E21B 4/00 (2006.01); F16C 17/02 (2006.01); F16C 17/04 (2006.01); E21B 10/22 (2006.01); F16C 33/10 (2006.01); F16C 33/26 (2006.01)
CPC (source: EP US)
E21B 4/003 (2013.01 - EP US); E21B 4/02 (2013.01 - US); F16C 17/028 (2013.01 - EP US); F16C 17/047 (2013.01 - EP US); F16C 17/08 (2013.01 - US); F16C 32/0692 (2013.01 - US); F16C 33/043 (2013.01 - EP US); F16C 33/1075 (2013.01 - EP US); F16C 33/108 (2013.01 - EP US); F16C 33/26 (2013.01 - EP US); F16C 43/02 (2013.01 - EP US); F16C 2226/34 (2013.01 - EP US); F16C 2352/00 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
DOCDB simple family (publication)
US 2009097788 A1 20090416; US 7896551 B2 20110301; EP 2198108 A2 20100623; EP 2198108 B1 20120627; US 2011120776 A1 20110526; US 2012255789 A1 20121011; US 2013313023 A1 20131128; US 2014241654 A1 20140828; US 8220999 B2 20120717; US 8641284 B2 20140204; US 8746979 B2 20140610; US 9347484 B2 20160524; WO 2009051938 A2 20090423; WO 2009051938 A3 20091230
DOCDB simple family (application)
US 97474707 A 20071015; EP 08840665 A 20080922; US 2008077241 W 20080922; US 201113014382 A 20110126; US 201213526922 A 20120619; US 201313955570 A 20130731; US 201414268980 A 20140502